43 lines
1.0 KiB
Ruby
43 lines
1.0 KiB
Ruby
|
module Zip
|
||
|
class ExtraField::Generic
|
||
|
def self.register_map
|
||
|
if self.const_defined?(:HEADER_ID)
|
||
|
::Zip::ExtraField::ID_MAP[self.const_get(:HEADER_ID)] = self
|
||
|
end
|
||
|
end
|
||
|
|
||
|
def self.name
|
||
|
self.to_s.split("::")[-1]
|
||
|
end
|
||
|
|
||
|
# return field [size, content] or false
|
||
|
def initial_parse(binstr)
|
||
|
if !binstr
|
||
|
# If nil, start with empty.
|
||
|
return false
|
||
|
elsif binstr[0, 2] != self.class.const_get(:HEADER_ID)
|
||
|
$stderr.puts "Warning: weired extra feild header ID. skip parsing"
|
||
|
return false
|
||
|
end
|
||
|
[binstr[2, 2].unpack("v")[0], binstr[4..-1]]
|
||
|
end
|
||
|
|
||
|
def ==(other)
|
||
|
return false if self.class != other.class
|
||
|
each do |k, v|
|
||
|
v != other[k] and return false
|
||
|
end
|
||
|
true
|
||
|
end
|
||
|
|
||
|
def to_local_bin
|
||
|
s = pack_for_local
|
||
|
self.class.const_get(:HEADER_ID) + [s.bytesize].pack("v") + s
|
||
|
end
|
||
|
|
||
|
def to_c_dir_bin
|
||
|
s = pack_for_c_dir
|
||
|
self.class.const_get(:HEADER_ID) + [s.bytesize].pack("v") + s
|
||
|
end
|
||
|
end
|
||
|
end
|